Anti-friction wheel



- (No Model.)

0. G. DEMING. ANTI-FRIGTION WHEEL] N0. 427,301. Patented May 6, 1890.

UNITED STATES CHARLES G. DEMING OF ATENT OFFICE.

WOODSTOCK, NEW YORK.

ANTI-LFRICTION WHEEL.

SPECIFICATION forming part of Letters Patent No. 427,301, dated May 6,1890.

Application filed October 3, 1889.

To all whom, it may concern:

Be it known that 1, CHARLES G. DEMING, a citizen of the United States,residing at Voodstock, in the county of Ulster and State of New York,have invented certain new and useful Improvements in FrictionlesslVheels; and I do hereby declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to wheels which are constructed to avoid frictionas far as practicable; and it consists in certain improvements inthe-construction of such wheels, as herein after described and claimed.

In the accompanying drawings, Figure 1 represents a side view of a wheelprovided with my improvements. Fig. 2 is a section of the same, taken online a: a: of Fig. 1. Figs. 3 and 4 show modifications in theconstruction of the wheel.

A designates a rim which forms the periphery of the wheel, and isprovided with an inner flange or rib a.

B indicates a cylindrical axle, which is provided with an exteriorflange or rib a',which when the parts are in position is on the samevertical plane with the rib a.

\Vithin the rim A and surrounding the axle B is placed a series ofwheels O, which bear against the rim and the axle. Each of the wheels 0is divided or open from the periphery toward the center, as shown, toadmit the endless bands hereinafter mentioned, and also the flanges a aof the rim and axle. The said wheels C may be made in two correspondingparts, as seen in Fig. 2, said parts being secured together by a centralbolt 0.

D indicates a series of rollers which are arranged on a-circle andseverally placed between two of the Wheels 0. The said rollers aregrooved at their peripheries, as seen in Fig. 2, the central parts 6forming bearings for the rings or hands I) and d, by which the rollersare held in place. These bands extend around through the openings in thewheels 0, the central parts f of said wheels forming bearings for one ofthem. The inner band b is outside of and against the central bearing fof each wheel 0, and is within Serial No. 325,831. (No model.)

and against the central bearing 6 of each of the grooved rollers D. (SeeFig. 1.) The outer band d, being parallel with band b, is outside of thecentral bearing parts of rollers D and bears against the same. In casegreat strength is not required a single outer band may be made to answerthe purpose. As the main wheel revolves, the wheels O, being in contactwith the axle and the outer rim A, are rotated. The inner band b, beingoutside of and against the central bearings or journals f of the wheelsO, is moved in one direction; and the said band I), acting against thecentral bearings or journals e of the rollers D, imparts to said rollersthe same rotary movement which they receive from engagement with thewheels O. The outer band (1, being in contact with the rollers-at 6,serves to keep them in place and moves in a direction opposite to thatof the inner band I). The construction is such that the number ofrevolutions of the rollers D caused by the bands moving on the journalsof the rollers Will correspond with the number of revolutions producedby the wheels 0 by contact with the peripheries of said rollers-that is,the two forces acting on rollers D, the one on the journals and theother on the peripheries, will impart to the rollers the same degree ofmotion. This can be regulated by making the rollers and their journalsof proportionate diameters with each other and with the journals ofwheels 0.

Every part of the wheel as constructed is independent of the otherparts, and if properly constructed lubrication will probably be .mayeach be secured by a ring I, which fits against the flange g, and boltsr, passed through the rim A, the flange, and the ring.

unnecessary and it will be impossible to over- Packing of rubber orother suitable material may be placed between the rim A and the flangesg to form tight joints.

In Fig. 3 is shown a modification in the construction of the wheel, thegrooved wheels 0 being each made in one piece and provided with outsidejournals 6. The rollers D are also provided with outside journals, andinstead of a peripheral groove each roller may be formed with a flangeor rib to extend into the openings in wheels 0. Two sets of bands 17 andd are employed with this form of Wheel, one set being applied to eachside. The bands have the same bearings on the journals of the wheelsCand the rollers as before described, and may be retained in position bynuts or pivoted washers n on the journals, or by grooves made in thejournals to receive the bands. In this form of wheel the axle may bemade in two parts, the said two .parts being screwed together. Thewheels 0 may be either convex or concave at the periphery,

the other parts which have bearing on said.

wheels being made to correspond.

A further modification of the wheel is shown in Fig. 4, the wheels 0being constructed in the form of rings and having no central bearing.The rollers D are provided with journals and are held in place by twocircular bearing f, the rolls D, with divisional bearings e, and thebands I) d, all combined constructed, and arranged as and for thepurpose set forth.

2. The combination, with a wheel, substantially as described, of thecentrally-apertured side plates G G, rings I, and bolts 4, said platesbeing provided with the outward flanges g, as and for the purposedescribed.

In testimony whereof I have affixed my signature in presence of twowitnesses.

CHARLES G. DEMING.

\Vitnesses:

CYRUS RUSSELL, BYRON O. SNYDER.

